The main way in which World War I caused the federal government to change its relationship with the business world is that it led them to play a more active role in companies that were manufacturing goods, to make sure that enough war materials were being made to ensure that the US could remain in the war.
A. deadliest day of fighting in the war
More people died in this battle than on any other day in the Civil War
Explanation:
It was because the mining and cattle ranching increased in the west
The correct answer is C, as the Honest Leadership and Open Government Act affects lobbying in the United States as it prohibits lobbyists from giving gifts to legislators.
This law was sanctioned in 2007, during George W. Bush's administration, and, among other things, it prohibits lobbyists from giving gifts to members of Congress as a way to convince them to support their petitions.